Winding machine



March 17, 1953 R. v. TATA 2,631,787

WINDING MACHINE Filed May 5, 1950 4o INVENTOR. 3 2, Raymond V. TafaPatented Mar. 17, 1953 WINDING MACHINE Raymond V. Tata, Providence, R.I., assignor to 7 Universal Winding (30., Cranston, R. I., a corporationof Massachusetts Application May 3, 1950, Serial No. 159,691

9 Claims. (01. 242-18) The present invention relates to improvements inwinding machines and particularly to a mechanism for winding a reservelength of yarn on the end of a core or other package-support beforewinding the package itself.

In the following specification and claims the term "yarn is employed ina general sense to apply to all kinds of strand materials, eithertextile or otherwise, and the designation package is intended to meanthe product of the winding machine whatever its form.

The present invention provides a device for attachment to orincorporation in a winding machine to adapt said machine to wind atransfer tail or tail-end on the end of a package core before thewinding of the actual package commences. The transfer tails ortail-endsfthus wound are employed to magazine a plurality of packages ona creel or other yarn holder by tying the transfer tail of one packageto the leading end of a second package so that the yarn will delivercontinuously from the several packages.

One object of the present invention is to provide a mechanism forwinding a transfer tail or tailend on the end of a package core.

Another object of the present invention is to provide a mechanism thathas relatively few moving parts for winding a transfer tail or tailendon the endof a package core.

Another object of the present invention is to provide a mechanism forwinding a transfer tail or tail-end on the end of a package core thatdoes not need to be reset after a transfer tail or "tail-end has beenwound before another can be wound.

Other objects of the invention will in part be obvious and will in partappear hereinafter.

The invention accordingly comprises the apparatus possessing theconstruction, combination of elements and arrangement of parts which areexemplified in the following detailed disclosure, and the scope of theapplication of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention,reference should be had to the following detailed description taken inconnection with the accompanying drawings wherein:

Figure 1 is a diagrammatic fragmentary view of a winding machineincorporating the transfer tail winding mechanism of the presentinvention;

- Fig. 2 is a side elevation of the rotating yarn guide; and

Fig. 3 is an end view of the rotating yarn guide.

L The present invention comprises a rotating fer tail and the package ofyarn is to be wound.

The rotating yarn guide is positioned so that its end surface isopposite the location on the package core that is to receive thetransfer tail, and outside of the traverse of a reciprocating yarn guideemployed in the formation of the yarn package. When the winding of apackage of yarn is commenced the end of the yarn to be wound is drawndiagonally from the supply of yarn to be wound across the end of therotating yarn guide and attached to the end of the package core. Therotating yarn guide holds the strand of yarn a predetermined length oftime and permits the package core, upon rotation thereof, to wind thedesired transfer tail. Upon continued'rotation of the rotating yarnguide the strand of yarn is passed between two of its teeth andpermitted to move out of engagement with said rotating yarn guide andinto the path of the reciprocating yarn guide which picks it up andproceeds to wind the desired package.

Referring now to Fig. l of the drawing wherein there is shown afragmentary diagrammatic view of one unit of the winding portion of amore or less conventional uptwister and including a twisting spindle. Adriving roll 10 is rotatably carried by shaft I2 suitably journaled in apair of end frames I4 (only one of which is shown) of the uptwister.Shaft I2 and roll 10 are rotated by any suitable means. A package corel6 adapted to have a transfer tail wound on a relatively short portionof its length adjacent one of its ends and a package of yarn Woundthereon adjacent said transfer tail, i mounted on arbor l8 and isadapted to be rotated by surface contact with driving roll IEI. Arbor I8and package core is are carried for pivotal movement towards and awayfrom drivin roll ID to allow for growth of the package of yarn and topermit dofling and donning operations by arm 20, which is pivotallyattached .to a mountin bracket (not shown) forming a part of theuptwister. A traverse bar 22 is reciprocated parallel to the axis ofpackage core l6, through a stroke of predetermined length equal to thelength of the package that it is desired to wind, by suitable cam means(not shown), and carries a self-threading yarn guide 24 adjacent packagecore It by means of yarn guide arm 26. A spindle 28 is suitably mountedon the uptwister frame for rotation by endless belt 30. A bobbin 32containing a supply of yarn Y for the package being wound on packagecore I6 is rotatably carried by spindle 28 which imparts a predeterminednumber of turns of twist per unit length to said yarn Y as it is drawnoff bobbin 32. Spindle 28 is located below and in front of the midpointof package core !6 that is to receive the package of yarn, and a fixedyarn guide 34 is fixedly mounted directly above spindle 28 on alongitudinal framemernber (not.- shown). All er the structure thusfar-"described is broadly conventional and well known to those skilledin the 10 art.

A rotating yarn guide 36, preferablyHn'o'uldd of plastic, is mounted onshaft 38 for rotation thereby opposite one end of, packagecore Wandbeyond the length thereof traversed bY'glfideYfi-J Rotating yarn guide36 is provided with a hub portion at having an axial bore' 42'ekten'ding therethrough and a longitudinal locking rib- 44 on the wallof said bore. The diameter of bore 42 is slightly larger than thediameter of shaft 2-0 88 and locking'rib' M has a height greater than'the"difference insaiddiameters and frictionally holds guide 35 at anydesired location on shaft -38. "Aplurality or generallytriangular'shaped yarn guide teeth fiii extend in-a--generally radial 5direction from one end of hub id to form aflange provided with aplurality of slots ifi having their centerlines-generally tangent to thewall cfbo're :32. Guide 36- isadapted to be rotatedfby shaft 33'infadirection generallycountercloclnvise"as viewed inFig. '3 for'a reasonthat will become apparenthereinafter.

-Shaft 38 and yarn guide 36 preferably rotate at a slower speed thanpackage core i 6' topermit -'said"core l6 towind a transfer tairof suifici'ent *length to be useful in magazining the wound packages-in' theabove described manner. 'H-owever, theexact ratio of the speed ofpackage pore" it to the speed of yarn guide is a matter of choice and isdetermined'by the length'of transfer tail "that is'desired. Intheembodiment"disclosed'in the drawing shaft 'fi8 is journaled -in endframes '14 so-as to be substantiallyparallel to shanl2 and above astraight line drawn between-stationar'y-yarn' guide! s and the point ofcontact be- 45 tweenfiriving roll i9 andpackage'core itso that '-astrand of yarnpassing through'gui de Hand "being 'wound"oncore is laysacross said shafti38 appreciable angle. aft '3 8 is rotated "in aclockwise direction asviewedin Fig. T by shaft 5 i 2 through bevelgearsfiaand" 52 zz'arriedrespec- -'tively"by shaft l2 and one end of shaftM,and worm 56 ,"and worm wheel 58 "e arried respectively by the other" endof'shaftbd'and t'he'endof shaft 38. "It' 'wiilfhowever, be obvious tothose skilled '55 in the art'that shaft 38 and yarnf'guidefifi can berotated by any other convenient" means.

"The mechanism'of the present invention'operfatesin the followingman'ner'to autoinatically "wind a transfer taiion' the end ofpa'cka 'gecore '60 'liiand following the Windingof'sai d' tra'nsfer'tail releasethe'yarn for engagement by'self-threadire. 1 the-end "adj aeent rotatingyarn guide f 36.

Spindle ZS is then moved into-engagement with to endless belt 33 tocause it and bobbin- 3 2 to' rotate and "impart twist to thelengthofwarn -extending between bobbin "32 and. package core 5. *Paekagecore l fiis then pivoted*downwardlyfinto en- "gagement" with drivingroll iii -which 'wii1 rotate (5 787 i 1 4 it in a counterclockwisedirection as viewed in Fig. 1 and simultaneously the length of yarn Yextending from stationary yarn guide 34 to package core [6 is drawn tothe left, as viewed in Fig. l, and laid over shaft 38 to the left ofrotating yarn guide 36 to form the two lengths Y and Y extending betweenguide 34 and rotating. guide 36 :and rotating-l'guide 36 and packagecore it respectively. Yarn guide36"serves'as a" stop and iprevents yarnY from sliding to the right along "shaft 38 into the path ofreciprocating yarn guide Z lifitila transfer tail of the desired lengthhas been wound. As rotating yarn guide 36 turns, on'e' o f' theslb'tsTES-formed therein will coincide '-with" the length of yarn Yextending between the""twoyarn'guides 34 and 36, and when this conditionoccurs, said length of yarn will be drawn through said slot due to thefact that both slotfliiand yarn Y are tangent to shaft 38 and length ofyarn Y is under tension to the right. "'Ccnti-nuediotation*of rotatingya'rnguide 36 permits 'yarn'Y 'to leave slot 53 when thesiot 48 carryingyarnY has been rota-ted until it s'ubstantially coincides with iengthpfyarn Y Q When this occurs, the lengthsY and Y slide to'the right alongshaft 38 and 1eng th Y also moves towards themi'dpoint of package coreitandinto the "patn of reciprocating yarn guide 2% which picks' 'it '-upand -traverses it"back' and ror'thiacr oss predetermined l ength of core1 5 to wind aselrsupportin package.

' Whereas the present invention has 'been"'disclosed 'and described-inconnection with the winding mechanism' associated' with a'-yarn twisting"mechanism; it will' be iin'derstood thatthe transfer tairwindingrnechanism of the' preserit invention can be 'applied to'other types'of:winding'rnachines.

Since certain 1 changes may be made -in the above apparatusi-without'departing n'om the i seope of the I invention hereiniin'volved; it is:in-

tended that all niatter J contained the "above description or "shown inthe accompanying drawin'g" shall" be interpreted as illustrative I andnot in a limiting sense.

What is claimedis: 1 In a windi'ng "machine thecom'b'inationlcomprising? means for' rotatably holdin a'lipa'ckage coreadapted to' havePa transrer taileund on one portion of ts -length andaiyarn ackage woand on another fi or'tion of its 1frigth,'- means forrOtatingsaid -core, niean s iontra'versifig' 'a "strand of yarn 'acrossthe pa'ckage receiving portion of said core -to vvind a package f yarnthereon, a rotating yarn guide comprisinga'hiib carrying a flange, sai-dfiange having a 'slot extending--therethrough,"rneans rotatably holdingsaid 'g-ui'de opposite 1 the I transfer tail'- receiving portion ofsaid" scream rotation -"aro'und -'an"'axis substantially parallel to theaxis of sai d core whereby 1 saidfya'rn guideholds said strarid 6f yarnirfline'withsaid transfer tail receiving portion for apredetermined-length of time tapermit rotation-of said core' tdv vindatransfer tail thereon. I

2. 'Ina winding machine: the coinbination'compri'si'rig means forrotatably holding a package core adapted to have a transfer tail woundone portionof its "len'g'thnnd a yarnpackage -wo'urid"onanother portionof '"its lengt'h; means for "rotating "said core," means for traversinga strand ofyarn' across the-packagereceiving'portion of said core towind a package of yarn thereon, a rotatable *sha'ft generally parallelto the smear said 'package corep'an'd a-rotating-yarn guide carried bysaid shaft opposite the transfer tail receiving portion of said core,said rotating yarn guide comprising a hub and a flange, said flangehaving a slot substantially tangent to said shaft formed therein, saidflange being adapted to hold said strand of yarn in line with saidtransfer tail receiving portion for a predetermined leng-th of time topermit rotation of said core to wind a transfer tail thereon, and saidslot being adapted to release said strand from said flange at the end ofsaid predetermined length of time.

3. In a Winding machine the combination comprising means for rotatablyholding a package core adapted to have a transfer tail Wound on oneportion of its length and a yarn package wound on another portion of itslength, means for rotating said core, means for traversing a strand ofyarn across the package receiving portion of said core to wind a packageof yarn thereon, a rotating yarn guide comprising a flange, said flangehaving a slot extending therethrough, means rotatably holding said guideopposite the transfer tail receiving portion of said core for rotationaround an axis substantially parallel to the axis of said core wherebysaid yarn guide holds said strand of yarn in line with said transfertail receiving portion for a predetermined length of time to permitrotation of said core to wind a transfer tail thereon.

4. In a winding machine the combination comprising means fcr rotatablyholding a package core adapted to have a transfer tail wound on oneportion of its length and a yarn package wound on another portion of itslength, means for rotating said core, means for traversing a strand ofyarn across the package receiving portion of said core to wind a packageof yarn thereon, a rotatable shaft generally parallel to the axis ofsaid package core, and a rotating yarn guide carried by said shaftopposite the transfer tail receiving portion of said core, said rotatingyarn guide comprising a flange, said flange having a slot substantiallytangent to said shaft formed therein, said flange being adapted to holdsaid strand of yarn in line with said transfer tail receiving portionfor a predetermined length of time to permit rotation of said core towind a transfer tail thereon, and said slot being adapted to releasesaid strand from said flange at the end of said predetermined length oftime.

5. In a Winding machine the combination comprising means for rotatablyholding a package core adapted to have a transfer tail Wound on oneportion of its length and a yarn package Wound on another portion of itslength, means for rotating said core, means for traversing a strand ofyarn across the package receiving portion of said core to wind a packageof yarn thereon, and a rotating yarn guide located opposite the transfertail receiving portion of said core, said rotating guide comprising ahub member having projections on its periphery adapted to hold saidstrand of yarn in line with said transfer tail receiving portion for apredetermined length of time to permit rotation of said core to wind atransfer tail thereon.

6. In a winding machine the combination comprising means for rotatablyholding a package core adapted to have a transfer tail wound on oneportion of its length and a yarn package .wound on another portion ofits length, means for rotating said core, means for traversing a strandof yarn across the package receiving portion of said core to Wind apackage of yarn thereon, and a rotating yarn guide located opposite thetransfer tail receiving portion of said core, said rotating guidecomprising a cylindrical element having projections on its peripheryadapted to hold said strand of yarn in line with said transfer tailreceiving portion for a predetermined length of time to permit rotationof said core to wind a transfer tail thereon.

7. In a winding machine the combination comprising means for rotatablyholding a package core adapted to have a transfer tail wound on oneportion of its length and a yarn package wound on another portion of itslength, means for rotating said core, means for traversing a strand ofyarn across the package receiving portion of said core to Wind a packageof yarn thereon, and a continuously rotating yarn guide located oppositethe transfer tail receiving portion of said core adapted to hold saidstrand of yarn in line with said transfer tail receiving portion for apredetermined length of time to permit rotation of said core to wind atransfer tail thereon.

8. In a winding machine the combination comprising means for rotatablyholding a package core adapted to have a transfer tail wound on oneportion of its length and a yarn package Wound on another portion of itslength, means for rotating said core, means for traversing a strand ofyarn across the pacakeg receiving portion of said core to wind a packageof yarn thereon, a continuously rotating yarn guide, means rotatablyholding said guide opposite the transfer tail receiving portion of saidcore for rotation around an axis substantially parallel to the axis ofsaid core whereby said yarn guide 1 holds said strand of yarn in lineWith said transfer tail receiving portion for a predetermined length oftime to permit rotation of said core to Wind a transfer tail thereon.

9. In a winding machine the combination comprising means for rotatablyholding a package core adapted to have a transfer tail wound on oneportion of its length and a yarn package wound on another portion of itslength, means for rotating said core, means for traversing a strand ofyarn across the package receiving portion of said core to wind a packageof yarn thereon, a continuously rotating yarn guide having a slot in itsperiphery, means rotatably holding said guide opposite the transfer tailreceiving portion of said core for rotation around an axis substantiallyparallel to the axis of said core whereby said yarn guide holds saidstrand of yarn in line with said transfer tail receiving portion for apredetermined length of time to permit rotation of said core to wind atransfer tail thereon.

RAYMOND V. TA'IA.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,334,427 Wood Mar. 23, 19202,461,593 Decker, Jr Feb. 15, 1949

